feat: sync showcase with WRNexusJS 0.8.72 and @wrnexus/ui 0.8.88

- Sync app, public, scripts, test and examples from the framework's
  component-showcase: redesigned component demos, marketing blocks under
  /blocks, template and preview galleries, distinct Timeline/Section
  variants, Chat Bubble receipts, a top-placement Drawer demo, and the
  playground code panel fix (objects in array props no longer blank out).
- Standalone adaptations kept: the generator and tests read
  component-reference.json from the published @wrnexus/ui, and tests use
  the published @wrnexus/compiler and @wrnexus/syntax.
- Dependencies: every @wrnexus/* package to its latest release (ui 0.8.88,
  styles 0.8.26, core 0.8.16, cli 0.8.72, ...), happy-dom for the
  playground tests, Tailwind 4.3; bun.lock and package-lock.json refreshed.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

app/pages/components/text-link.wrn

@@ -65,7 +65,7 @@ page TextLinkDetail {
         <div class="demo-workbench">
           <div id="text-link-demo-1" class="demo-canvas demo-canvas--1">
             <div class="demo-browser-chrome"><span></span><span></span><span></span><small>Live preview</small></div>
-
+            
             <div class="demo-render"><TextLink label="Learn more" href="#learn" external="false" icon="" showArrow="true" underline="false" size="default" variant="default" disabled="false" class="showcase-instance showcase-instance--1" /></div>
           </div>
           <section class="demo-code" aria-label="Inline directional link usage">
@@ -84,7 +84,7 @@ page TextLinkDetail {
         <div class="demo-workbench">
           <div id="text-link-demo-2" class="demo-canvas demo-canvas--2">
             <div class="demo-browser-chrome"><span></span><span></span><span></span><small>Live preview</small></div>
-
+            
             <div class="demo-render"><TextLink label="Read the complete guide" href="#guide" external="false" icon="icon-[lucide--arrow-right]" showArrow="false" underline="true" size="sm" variant="secondary" disabled="false" class="showcase-instance showcase-instance--2" /></div>
           </div>
           <section class="demo-code" aria-label="Underlined content link usage">
@@ -109,7 +109,7 @@ page TextLinkDetail {
         <div class="demo-workbench">
           <div id="text-link-demo-3" class="demo-canvas demo-canvas--3">
             <div class="demo-browser-chrome"><span></span><span></span><span></span><small>Live preview</small></div>
-
+            
             <div class="demo-render"><TextLink label="Open WRNexusJS documentation" href="https://wrnexusjs.dev" target="_blank" external="true" icon="icon-[lucide--book-open]" iconPosition="start" showArrow="false" underline="false" size="lg" variant="soft" disabled="false" class="showcase-instance showcase-instance--3" /></div>
           </div>
           <section class="demo-code" aria-label="External developer link usage">
@@ -153,7 +153,7 @@ if (component) registerOutputHandler(component, "blur", (payload) =&gt; <span>&#
       </aside>
     </div>
     <nav class="detail-pagination">
-      <a href="/components/split-hero"><small>Previous</small><strong>← Split Hero</strong></a>
+      <span></span>
       <span></span>
     </nav>
   }